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    <title>IP111.cn - 专业网络诊断工具平台</title>
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    <!-- Hero Section -->
    <section class="hero-gradient text-white py-20">
        <div class="container mx-auto px-6">
            <div class="text-center">
                <h1 class="text-5xl md:text-6xl font-bold mb-4">IP111.cn</h1>
                <p class="text-xl md:text-2xl mb-8 opacity-90">专业网络诊断与信息查询工具平台</p>
                <div class="max-w-3xl mx-auto">
                    <p class="text-lg leading-relaxed opacity-80">
                        为网络管理员、开发者和普通用户提供快速识别与分析网络连接状态的一站式解决方案
                    </p>
                </div>
                <a href="https://ip111.cn/" target="_blank" class="inline-block mt-8 bg-white text-purple-700 px-8 py-3 rounded-full font-semibold hover:bg-gray-100 transition duration-300">
                    <i class="fas fa-external-link-alt mr-2"></i>访问 IP111.cn
                </a>
            </div>
        </div>
    </section>

    <!-- Main Content -->
    <div class="container mx-auto px-6 py-12">
        <!-- Introduction -->
        <div class="bg-white rounded-2xl shadow-xl p-8 mb-12">
            <p class="text-lg leading-relaxed text-gray-700">
                <span class="drop-cap">I</span>P111.cn是一个专注于网络诊断和信息查询的综合性工具网站，为网络管理员、开发者和普通用户提供快速识别与分析网络连接状态的解决方案。
            </p>
        </div>

        <!-- Core Features -->
        <div class="mb-12">
            <h2 class="text-3xl font-bold mb-8 relative pl-8 section-title">核心功能概述</h2>
            <div class="grid md:grid-cols-2 lg:grid-cols-3 gap-6">
                <div class="bg-white rounded-xl p-6 card-hover">
                    <i class="fas fa-network-wired text-4xl mb-4 feature-icon"></i>
                    <h3 class="text-xl font-semibold mb-3">IP地址查询</h3>
                    <p class="text-gray-600">精准显示访问者的公网IP、物理位置、运营商信息，支持IPv4和IPv6双栈检测</p>
                </div>
                <div class="bg-white rounded-xl p-6 card-hover">
                    <i class="fas fa-code text-4xl mb-4 feature-icon"></i>
                    <h3 class="text-xl font-semibold mb-3">HTTP请求头分析</h3>
                    <p class="text-gray-600">详细展示浏览器指纹、UA信息及服务器交互参数，帮助开发者调试</p>
                </div>
                <div class="bg-white rounded-xl p-6 card-hover">
                    <i class="fas fa-wifi text-4xl mb-4 feature-icon"></i>
                    <h3 class="text-xl font-semibold mb-3">网络连通性检测</h3>
                    <p class="text-gray-600">提供Ping、端口扫描等功能，快速诊断网络连接问题</p>
                </div>
                <div class="bg-white rounded-xl p-6 card-hover">
                    <i class="fas fa-globe text-4xl mb-4 feature-icon"></i>
                    <h3 class="text-xl font-semibold mb-3">DNS解析工具</h3>
                    <p class="text-gray-600">查询域名的各类记录及传播状态，辅助域名管理和问题排查</p>
                </div>
                <div class="bg-white rounded-xl p-6 card-hover">
                    <i class="fas fa-toolbox text-4xl mb-4 feature-icon"></i>
                    <h3 class="text-xl font-semibold mb-3">实用网络工具集</h3>
                    <p class="text-gray-600">包含WebSocket测试、网速测试等专业工具，满足多样化需求</p>
                </div>
            </div>
        </div>

        <!-- Usage Scenarios -->
        <div class="bg-gradient-to-r from-purple-50 to-indigo-50 rounded-2xl p-8 mb-12">
            <h2 class="text-3xl font-bold mb-6 relative pl-8 section-title">使用场景</h2>
            <p class="text-lg leading-relaxed text-gray-700 mb-4">
                当你需要确认VPN是否正常工作时，IP111可快速验证IP地址变化；在网站开发调试阶段，HTTP头信息分析有助于定位兼容性问题；对于跨境业务，了解自己在不同国家地区的网络访问情况也至关重要。
            </p>
            <p class="text-lg text-purple-700 font-semibold">
                <i class="fas fa-question-circle mr-2"></i>你是否曾遇到网站无法访问却不知如何排查的情况？
            </p>
        </div>

        <!-- Visualization -->
        <div class="bg-white rounded-2xl shadow-xl p-8 mb-12">
            <h2 class="text-2xl font-bold mb-6 text-center">功能关系图</h2>
            <div class="mermaid">
                graph TD
                    A[IP111.cn平台] --> B[网络诊断]
                    A --> C[信息查询]
                    A --> D[开发工具]
                    
                    B --> B1[IP地址检测]
                    B --> B2[连通性测试]
                    B --> B3[网速测试]
                    
                    C --> C1[DNS解析]
                    C --> C2[地理位置]
                    C --> C3[运营商信息]
                    
                    D --> D1[HTTP头分析]
                    D --> D2[WebSocket测试]
                    D --> D3[端口扫描]
                    
                    style A fill:#667eea,stroke:#764ba2,stroke-width:3px,color:#fff
                    style B fill:#e0e7ff,stroke:#667eea,stroke-width:2px
                    style C fill:#e0e7ff,stroke:#667eea,stroke-width:2px
                    style D fill:#e0e7ff,stroke:#667eea,stroke-width:2px
            </div>
        </div>

        <!-- Advantages -->
        <div class="grid md:grid-cols-2 gap-8 mb-12">
            <div class="bg-white rounded-2xl shadow-xl p-8">
                <h2 class="text-3xl font-bold mb-6 relative pl-8 section-title">优势与特色</h2>
                <ul class="space-y-4">
                    <li class="flex items-start">
                        <i class="fas fa-check-circle text-purple-600 mt-1 mr-3"></i>
                        <span class="text-gray-700">界面简洁无广告干扰，加载速度快</span>
                    </li>
                    <li class="flex items-start">
                        <i class="fas fa-check-circle text-purple-600 mt-1 mr-3"></i>
                        <span class="text-gray-700">信息展示专业且全面，覆盖基础到专业诊断</span>
                    </li>
                    <li class="flex items-start">
                        <i class="fas fa-check-circle text-purple-600 mt-1 mr-3"></i>
                        <span class="text-gray-700">支持中英文双语界面，方便国际用户</span>
                    </li>
                    <li class="flex items-start">
                        <i class="fas fa-check-circle text-purple-600 mt-1 mr-3"></i>
                        <span class="text-gray-700">所有工具集成在一个平台，无需切换</span>
                    </li>
                </ul>
            </div>

            <div class="bg-gradient-to-br from-purple-600 to-indigo-700 text-white rounded-2xl shadow-xl p-8">
                <h2 class="text-3xl font-bold mb-6">使用门槛与成本</h2>
                <div class="space-y-4">
                    <div class="flex items-center">
                        <i class="fas fa-gift text-3xl mr-4"></i>
                        <div>
                            <h3 class="text-xl font-semibold">完全免费</h3>
                            <p class="opacity-90">无需注册即可使用全部功能</p>
                        </div>
                    </div>
                    <div class="flex items-center">
                        <i class="fas fa-mobile-alt text-3xl mr-4"></i>
                        <div>
                            <h3 class="text-xl font-semibold">全平台支持</h3>
                            <p class="opacity-90">响应式设计，支持各种设备访问</p>
                        </div>
                    </div>
                </div>
            </div>
        </div>

        <!-- Getting Started Guide -->
        <div class="bg-white rounded-2xl shadow-xl p-8">
            <h2 class="text-3xl font-bold mb-8 relative pl-8 section-title">上手指南</h2>
            <div class="space-y-4">
                <div class="flex items-start">
                    <span class="step-number">1</span>
                    <p class="text-lg text-gray-700">访问 ip111.cn 网站</p>
                </div>
                <div class="flex items-start">
                    <span class="step-number">2</span>
                    <p class="text-lg text-gray-700">首页自动显示您的基本IP信息</p>
                </div>
                <div class="flex items-start">
                    <span class="step-number">3</span>
                    <p class="text-lg text-gray-700">通过顶部导航栏选择需要的具体工具</p>
                </div>
                <div class="flex items-start">
                    <span class="step-number">4</span>
                    <p class="text-lg text-gray-700">按照界面提示输入相关参数（如需要检测的域名、IP等）</p>
                </div>
                <div class="flex items-start">
                    <span class="step-number">5</span>
                    <p class="text-lg text-gray-700">获取结果并根据分析数据解决问题</p>
                </div>
            </div>
        </div>
    </div>

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